startPresentation
suspend fun startPresentation( request: RequestParametersFrom<AuthenticationRequestParameters>, isCrossDeviceFlow: Boolean = false): KmmResult<Unit>(source)
Calls openId4VpHolder to create the authentication response. In case the result shall be POSTed to the verifier, we call client to do that, and optionally openUrlExternally with the redirect_uri of that POST. In case the result shall be sent as a redirect to the verifier, we call openUrlExternally.